43413306121 has 2 divisors, whose sum is σ = 43413306122. Its totient is φ = 43413306120.

The previous prime is 43413306107. The next prime is 43413306133. The reversal of 43413306121 is 12160331434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22138166521 + 21275139600 = 148789^2 + 145860^2 .

It is a cyclic number.

It is not a de Polignac number, because 43413306121 - 2²¹ = 43411208969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43413306121.

It is not a weakly prime, because it can be changed into another prime (43413376121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21706653060 + 21706653061.

It is an arithmetic number, because the mean of its divisors is an integer number (21706653061).

Almost surely, 2^43413306121 is an apocalyptic number.

It is an amenable number.

43413306121 is a deficient number, since it is larger than the sum of its proper divisors (1).

43413306121 is an equidigital number, since it uses as much as digits as its factorization.

43413306121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 43413306121 its reverse (12160331434), we get a palindrome (55573637555).

The spelling of 43413306121 in words is "forty-three billion, four hundred thirteen million, three hundred six thousand, one hundred twenty-one".